Claims
- 1. A method for preventing an unauthorized intrusion into a transmission apparatus maintenance system constructed in such a manner as to allow a user to perform maintenance operations on a transmission apparatus from a maintenance terminal by logging in to said transmission apparatus from said maintenance terminal, said method comprising the steps of:
counting the number of failed log-ins to said transmission apparatus; sending a message to a monitoring terminal when the number of failed log-ins exceeds a predetermined threshold value; and displaying the occurrence of an unauthorized log-in attempt on said monitoring terminal, based on said message.
- 2. A method according to claim 1, wherein
said maintenance system is constructed so that from the maintenance terminal physically connected to one of a plurality of transmission apparatuses, a log-in can be made to said one transmission apparatus or to any one of the other transmission apparatuses, at each of said plurality of transmission apparatuses, the number of failed log-ins to itself is counted, said message includes an identifier identifying the transmission apparatus on which the log-in was attempted, and an identifier identifying the transmission apparatus to which the maintenance terminal that attempted the log-in is connected, and the display produced on said monitoring terminal includes indication of the transmission apparatus on which the log-in was attempted and indication of the transmission apparatus to which the maintenance terminal used to attempt the log-in is physically connected.
- 3. A method for preventing an unauthorized intrusion into a transmission apparatus maintenance system constructed in such a manner as to allow a user to perform maintenance operations on a transmission apparatus from a maintenance terminal by logging in to said transmission apparatus from said maintenance terminal, said method comprising the steps of:
monitoring a physical connection to said maintenance terminal; and forcefully causing said user to log out when disconnection of the physical connection to said maintenance terminal is detected.
- 4. A method according to claim 1, wherein
said maintenance system is constructed so that from the maintenance terminal physically connected to one of a plurality of transmission apparatuses, a log-in can be made to said one transmission apparatus or to any one of the other transmission apparatuses, said method further comprising the step of:
storing, at each of said plurality of transmission apparatuses, a list of transmission apparatuses to which a command has been sent from the maintenance terminal connected to itself, and wherein:
when disconnection of the physical connection to said maintenance terminal is detected, said user is forcefully caused to log out from all the transmission apparatuses indicated in said stored list.
- 5. An apparatus for preventing an unauthorized intrusion into a transmission apparatus maintenance system constructed in such a manner as to allow a user to perform maintenance operations on a transmission apparatus from a maintenance terminal by logging in to said transmission apparatus from said maintenance terminal, said apparatus comprising:
means for counting the number of failed log-ins to said transmission apparatus; and means for sending a message to a monitoring terminal when the number of failed log-ins exceeds a predetermined threshold value, said message being used to display the occurrence of an unauthorized log-in attempt on said monitoring terminal.
- 6. An apparatus according to claim 5, wherein
said maintenance system is constructed so that from the maintenance terminal physically connected to one of a plurality of transmission apparatuses, a log-in can be made to said one transmission apparatus or to any one of the other transmission apparatuses, and said message includes an identifier identifying the transmission apparatus originating said message, and an identifier identifying the transmission apparatus to which the maintenance terminal used to attempt the log-in is physically connected.
- 7. An apparatus for preventing an unauthorized intrusion into a transmission apparatus maintenance system constructed in such a manner as to allow a user to perform maintenance operations on a transmission apparatus from a maintenance terminal by logging in to said transmission apparatus from said maintenance terminal, said apparatus comprising:
means for monitoring a physical connection to said maintenance terminal; and means for forcefully causing said user to log out when disconnection of the physical connection to said maintenance terminal is detected.
- 8. An apparatus according to claim 7, wherein
said maintenance system is constructed so that from the maintenance terminal physically connected to one of a plurality of transmission apparatuses, a log-in can be made to said one transmission apparatus or to any one of the other transmission apparatuses, said apparatus further comprising:
means for storing a list of transmission apparatuses to which a command has been sent from the maintenance terminal connected to itself, and wherein:
when disconnection of the physical connection to said maintenance terminal is detected, said user is forcefully caused to log out from all the transmission apparatuses indicated in said stored list.
Priority Claims (2)
Number |
Date |
Country |
Kind |
99/01800 |
Apr 1999 |
JP |
|
2000-67051 |
Mar 2000 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of PCT/JP99/01800.
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/JP00/09016 |
Dec 2000 |
US |
Child |
09952509 |
Sep 2001 |
US |